Question

I want to know how to add two 40 digit numbers both in Objective C and Android.

Example:

 4000000000000000000000000000000000000000000000000000000000
+5000000000000000000000000000000000000000000000000000000000

How to store and where to store these values?

What is the solution for this?

Answer 1

in case of objective-c, following code is been used to do the calculation

NSDecimalNumber *aNumber = [NSDecimalNumber decimalNumberWithString:@"4000000000000000000000000000000000000000"]; 

NSDecimalNumber *bNumber = [NSDecimalNumber decimalNumberWithString:@"2000000000000000000000000000000000000000"]; 

NSDecimalNumber *cNumber = [aNumber decimalNumberByAdding:bNumber]; 

NSLog(@"%@", cNumber);

here we use the NSDecimalNumber.